Improvement in machines for cutting rubber soles



Unrriizn STATES PATENT' OFFICE.

GEORGE H. IVES, OF NEW HAVEN, CONNECTICUT.

l IMPROVEMENT IN MACHINES FQR CUTTING RUBBER soLEs.

Specification forming part of Letters Patent No. 1l49,659, dated April 14, 1874; application filed 4 February 28, 1874.

To all 'whom it may concern:

Be it known that I, GEORGE H. IVEs, of New Haven, in the county of New Haven and State of Connecticut, have invented a new and Improved Machine for Cutting Bubber Soles, `&c., of which the following is a speciiication:

In the accompanying drawing, Figure l rep- Y resents a vertical longitudinal section, taken on the line c c, Fig. 2, of my improved machine for cutting out lrubber soles, &c. Fig. 2 is a top view of the same, with part cut oft' to show stamp-form; andl Fig. 3, a detail side view of the mechanism for raising the upper feed-block after drawing the rubber cloth through the machine; I

lSimilar letters of reference indicate corresponding parts.

The object of my invention is to produce for manufacturers of rubber goods an improved machine for cutting out soles, fillings, or any other article from rubber cloth. The usual form of cutters or stamps may be employed. A spring-board attached in front of stamps raises the cloth slightly abovethe stamp after veach stroke. The pieces, vafter being out, drop onto an endless .belt or apron, whichv carries the same off. The rubber cloth is fed fromthe cloth-roller by reciprocating sliding feed-` blocks, which are operated by the'driving-- shaft, their extent of motion being regulated by adjustable guide-pieces. The feed-blocks take hold of the cloth attereach stroke, and feed the same to the stamp, releasing it on the A returnmotion bypassing along inclined guides,

which 'raise the upper feedbloek.

In the drawing, A represents the supporting-frame of my cutting-machine for rubber goods. .Frame Ais constructed of base-pieces of suitable strength; a lateral frame, B, sup-` ported by vertical standards B', for the stampi'orm C, hammer or follower rods, and drivingshaft. The cloth-roller D is placed in front of upright'frame B, and the cloth drawn through l between stamp-form C and hammer C1 by feedblocks E, arranged at the opposite side 0f p frame B. yAn endless belt or apron, F, is

stretched on rollers, F', passing below stampform C, and conducting the pieces stamped out to some receptacle provided for the same. The hammer-belt and feeding mechanism are operated in connection with4 the drivingshaft G, to which motion is imparted by hand, steam,

lof the hammer, onv the release of lugs a',

cuts the solel or other article from the rub-A ber cloth. The stamp-forms .C are made of a shape most suitableto the different stamps used, and a number of them arranged sidewise of each other to cut the whole width of the cloth. They are supported on a cast-iron frame, in order to havel the required degree of firmness. The forms are. made of iron, and hold the-stamps, by means of set-screws, in the usual manner. The stamps or knives are kept wet by means of Sponges stuffed around the outside of them, by which the dropping out of the soles, &c., from the stamps onto the belt is accelerated. A board, b, is pivoted to the front end of the stamp-form C, and acted upon by a spring, b', of sufficient power at the under side of form C, for lifting the clothafter each stroke slightly above the knives, so as to prevent any interruption in the regular forward feeding of the cloth. The cloth-feeding mechanism is operated in connection with the driving-shaft by vlever-rod d, lateral crank-rode, with central crank c', and arm f, pivoted to the under side of the lower feed-block E, which slides in grooved horizontal guide-pieces g, attached to standards of frame B. rllhe lower Vfeed-block E is provided with vertical end standards E', whichr are centrally slotted for guiding the projecting end pieces 71J of the upper feed-block E therein. Pins h project sidewise below pieces h, and pass along the inclined arms l, pivoted to frame A, raising thereby the upper feed-block till it is carried beyond the arms, and, by dropping down, takes hold of the cloth, and draws it forward ,the exact length required. Pins h slide, during the forward motion of the feed-blocks, along the inclined endsl of adjustable pieces m, so as to release thereby instantly the upper feed-block from the cloth, and raise also the pivoted arms Zfor the passage of pins h. The pieces m are adjusted on guides g by slots n and set-screws n', the length of the cloth fed for cutting being defined by the dropping of the feed-block, and the contact-point of pins h with the inclined end of pieces m. By adjustingpiecesmnearerto thehammerthelength of feed is shortened; by, setting it in opposite direction it is lengthened, so that diiferentsized goods may be readily out by my machine.

The reciprocating motion of the feed-blocks carries the cloth forward at the instant when the hammer is raised, terminating the feeding motion simultaneously with the down-stroke of the hammer. v

The machine can be run with great rapidity, cutting the pieces out of the cloth in an exact and accurate manner, and producing a considerable saving of time and labor thereby.

Having thus described my invention, l claim as new and desire to secure by Letters Patentl. The combination of the upper feed-block E, having pins h, lower reciprocating feedblock E', provided with slotted end standards, the blocks m, and pivoted arms l, as shown and described.

2. The combination of tappet-shaft G, vertically-acting hammers C1, feedblocks E E', shaft e, with arms e e', and connecting-rods d f, all arranged as shown and described, wherebythe cloth is drawn forward at the instant the hammers are raised.

3. The combination of a spring device with the stamps or cutters C, for elevating the cloth subsequent to each stroke of the hammer, as shown and described.

Witnesses: ,GEORGE H. IVES.

GEORGE F. PARKER, EDGAR L. HAYES. 

